So, the other day I was watching the MTV show "Silent Library", and I thought to myself "Has anyone else ever tried something like this at a convention before?"
For those that don't know, Silent Library is a game show in which a group of 6 undergoes various crazy challenges for cash. The catch is that they have to stay as quiet as possible (hence the library atmosphere) while going through these challenges or they don't get anything.
Just throwing this out there. You could probably do it for various prizes instead of cash.